路由器通过NVI解决内网访问内部服务器的外部映射地址测试

一.测试拓扑：

参照：https://supportforums.cisco.com/message/3648386#3648386

据说是12.3(14)T 的IOS才开始有的功能：

http://www.cisco.com/en/US/docs/ios/12_3t/12_3t14/feature/guide/gtnatvi.html

二.基本配置：

A.R1

int e0/0

ip add 192.168.10.1 255.255.255.0

no sh

line vty 0 5

password cisco

login

ip route 0.0.0.0 0.0.0.0 192.168.10.254

B.R2

interface Ethernet0/0

ip address 192.168.10.254 255.255.255.0

no shut

interface Ethernet0/1

ip address 202.100.1.2 255.255.255.0

no shut

C.R3

interface Ethernet0/0

ip address 202.100.1.3 255.255.255.0

no shut